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YS/T 74.3-2010: Methods of chemical anaysis of cadmium. Part 3: Determination of nickel content. Electrothermal atomic absorption spectrometry method
Status: Valid YS/T 74.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 74.3-2010 | English | 159 |
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Methods of chemical anaysis of cadmium. Part 3: Determination of nickel content. Electrothermal atomic absorption spectrometry method
| Valid |
YS/T 74.3-2010
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| YS/T 74.3-1994 | English | 199 |
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Methods for chemical analysis of cadmium. The dimethylglyoxime photometric method for the determination of nickel content
| Obsolete |
YS/T 74.3-1994
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Basic data | Standard ID | YS/T 74.3-2010 (YS/T74.3-2010) | | Description (Translated English) | Methods of chemical anaysis of cadmium. Part 3: Determination of nickel content. Electrothermal atomic absorption spectrometry method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.70 | | Word Count Estimation | 6,657 | | Date of Issue | 2010-11-22 | | Date of Implementation | 2011-03-01 | | Older Standard (superseded by this standard) | YS/T 74.3-1994 | | Regulation (derived from) | MIIT (2010) No. 126 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the amount of nickel cadmium determination. This standard applies to the determination of the amount of nickel cadmium. Measuring range: 0. 0004% to 0. 010 % | YS/T 74.3-2010: Methods of chemical anaysis of cadmium. Part 3: Determination of nickel content. Electrothermal atomic absorption spectrometry method
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Methods of chemical anaysis of cadmium.Part 3. Determination of nickel content.Electrothermal atomic absorption spectrometry method
ICS 77.120.70
H13
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 74.3-1994
Methods for chemical analysis of cadmium
Part 3. Determination of nickel content
Electrothermal atomic absorption spectrometry
Part 3. Determinationofnickelcontent-
Issued on. 2010-11-22
2011-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 74-2010 "cadmium chemical analysis method" is divided into 11 parts.
--- Part 1. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry;
--- Part 2. Determination of antimony content hydride generation - atomic fluorescence spectrometry;
--- Part 3. Determination of nickel content by electrothermal atomic absorption spectrometry;
--- Part 4. Determination of lead content by flame atomic absorption spectrometry;
--- Part 5. Determination of the amount of copper diethyl dithiocarbamate spectrophotometry lead;
--- Part 6. Determination of zinc content - Flame atomic absorption spectrometry;
--- Part 7. Determination of iron content of 1,10 phenanthroline spectrophotometry;
--- Part 8. Determination of thallium content of crystal violet spectrophotometry;
--- Part 9. Determination of tin content by hydride generation - atomic fluorescence spectrometry;
--- Part 10. Determination of the amount of silver by flame atomic absorption spectrometry;
--- Part 11. Inductively coupled plasma atomic arsenic, antimony, nickel, lead, copper, zinc, iron, thallium, tin and silver content of the emitted light
Spectroscopy.
This is Part 3.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of YS/T 74.3-1994 "Methods for chemical analysis of cadmium dimethylglyoxime spectrophotometric determination of nickel content," this part of the original standard
Quasi compared to the main changes are as follows.
--- Analytical methods to electrothermal atomic absorption spectrometry;
--- Complements the precision, quality assurance and control provisions;
--- Increase the warning prompt;
--- Increasing the test report clause.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. MCC Huludao Nonferrous Metals Group Co., Ltd.
This section is drafted. Zhuzhou Smelter Group Co., Ltd.
Participated in the drafting of this section. Beijing Mining Research Institute, Guangzhou Nonferrous Metal Research Institute.
The main drafters of this section. Yeshi Yuan, Zhou Yi, Jiang seek Tao Yuan Yuxia, Daifeng Ying, Liu Xiaohui.
This part of the standard replaces the previous editions are.
--- YS/T 74.3-1994;
--- GB/T 3827-1983.
Methods for chemical analysis of cadmium
Part 3. Determination of nickel content
Electrothermal atomic absorption spectrometry
Warning --- Use this section a person shall be regular laboratory work experience, and have the use of electrothermal atomic absorption spectrometer
Skills, in strict accordance with electrothermal atomic absorption spectrometer safe operating procedures.
1 Scope
YS/T of the provisions of section 74 of the method for the determination of cadmium in nickel content.
This section applies to the determination of cadmium in nickel content. Measurement range. 0.0004% to 0.010%.
2 principle of the method
Sample dissolved in nitric acid, a volume of the test solution injected into the electrothermal atomizer with Zeeman effect atomic absorption spectrometer at a wavelength
232.0nm measured at an absorbance of nickel, nickel content calculated by working curve method.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or equivalent purity. Containers are used in the experiments
After soaking 12h, thoroughly washed with distilled water with nitric acid (3.3).
3.1 nitrate (ρ1.42g/mL), pure class distinctions.
3.2 nitric acid (11).
3.3 nitric acid (199).
3.4 Nickel standard stock solution. Weigh 1.0000g of nickel (wNi≥99.99%) in 100mL beaker, add 40mL of nitric acid
(3.2) Table covered dish, heated to dissolve the low temperature, the removal of nitrogen oxides, was cooled, the solution is transferred 1000mL volumetric flask, with nitric acid
(298) diluted to the mark, and mix. This solution 1mL containing 1.0mg nickel.
3.5 Nickel standard solution. Pipette 1.00mL Nickel standard stock solution (3.4) in 500mL volumetric flask, dilute with nitric acid (298) to the mark
Degree, and mix. This solution 1mL containing 2.0μg nickel.
4 Instrument
4.1 graphite furnace atomic absorption spectrometer. with electrothermal atomizer, micro sampler or autosampler, nickel hollow cathode lamp and Zeeman effect
Background correction devices.
4.2 by graphite furnace atomic absorption spectrometer should meet the following specifications.
--- Sensitivity. curve used in the arithmetic series of standard solution of greatest concentration, absorbance should not be less than 0.300.
--- Correlation coefficient curve is not less than 0.995.
--- Precision. standard solution with the highest concentration, the absorbance measured 10 times, calculate the mean and standard deviation. The standard deviation is not
It should be more than 1.5% of the mean absorbance. With the lowest concentration of standard solution (standard solution concentration is not zero), measuring
10 times the absorbance, calculating the standard deviation. The standard deviation of the highest concentrations of the standard solution should not exceed the average absorbance
0.5%.
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